New semester poetry packet!!

This week the poem I'm doing is "Of mere Being." This poem is rather confusing and I had to read it a couple of times to try to get a real feeling for what it could be and I came up with a few things but the one that's most believeable is it could be about death. Like "The palm at the end of the mind, Beyond the last thought..." rises a bird that, according to greek mythology, is immortal or is reborn from it's ashes, the phoenix. The poem could be talking about limbo even the place between death and heaven (or whatever you believe is after). It's after the last thought where we know that even if something is foriegn to us it won't make us happy or unhappy. Like the last stanza says "the wind moves slowly in the branches." When you see this greek bird it could represent new life like you're being born from your ashes again and your spirit is going to heaven or maybe its just the wind in your new branches. Or I could be super off this poem was kind of hard to understand